I dropped my jets to 10/10 and it got rid of the surge, but now under full load I could barely detect some detonation. This is an experiment so I'm running 89 octane straight. I am now wondering if a two stage injection might work better. That way I could a small spray and then at wide open throttle get some more injection. I am thinking of instead of micro switches, some kind of way run it off of a RPM switch like a 2 or 3 channel switch. What do yall think? Any ideas how to make it work?